Short answer: the Tribit Stormbox Flow. It ranks #62 of 175 medium speakers by sound quality, rated 3.5/5, at $79.99; the Marshall Emberton III ranks #126, rated 2.7/5, and costs $129.99, which makes this an easy call rather than a real tradeoff.
The Tribit Stormbox Flow is the better-sounding, deeper-bass choice. Up to 30 hours of battery life: roughly double most rivals (~20-24 hrs with XBass on). Its bass reaches about 47Hz before falling 10dB, against 62Hz for the Marshall Emberton III. It supports AAC Bluetooth, which the Marshall Emberton III lacks. The catch: Midrange and bass are weirdly recessed about 4db below 700Hz.
What the Marshall Emberton III does well: 30 hour battery life: among the best in its class; a 20 min quick-charge gives 4 hours. It plays in stereo from a single unit, unlike the Tribit Stormbox Flow. The catch: Strange unnatural echo-like sound coloration, bass not as deep as competitors.
Buy the Tribit Stormbox Flow. It is rated higher for sound quality than the Marshall Emberton III and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Tribit Stormbox Flow | Marshall Emberton III | |
|---|---|---|
| Price | $79.99 | $129.99 |
| Ranked | #62 of 175 in Medium Size Portable Bluetooth Speakers | #126 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Bass Extension (-10dB) | 47Hz | 62Hz |
| Battery Life | 30 hours (Manufacturer specified) | 32 hours (Manufacturer specified) |
| EQ | Yes | Yes (3 presets via app) |
| Bluetooth Latency | 400ms aac, 200ms sbc | - |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | Yes |
| Weight | 1.4 lbs (657 g) | 1.5 lbs (673 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 7.9” x 3.6” x 2.1” (200 x 91 x 53 mm) | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 25W | 20W |
| Drivers | 60W: 2x 30mm drivers + passive radiators | 2x 2” full-range cone drivers + 2x 2” passive radiators |
| IP Rating | IPX7 | IP67 |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC, AAC | SBC |
| Aux Input | No | No |
| TWS | Yes | No |
| Power Input | USB-C | USB-C |
| Party Mode | - | Yes (Marshall Stack) |
| Built-in Microphone | - | Yes |
| Power Bank | - | No |
| Strap | - | No |
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Prices on this page were last checked October 12, 2026 at 4:13 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Tribit Stormbox Flow: $79.99 Tribit $79.99 eBay
Same family: the Tribit Stormbox Micro 2 (smaller model, rated 4.5/5), the Tribit Stormbox Pro (larger model, ranked higher, rated 3.7/5) and the Tribit Stormbox Blast (larger model, rated 4.5/5). See every Tribit Stormbox generation.
Pros: Up to 30 hours of battery life: roughly double most rivals (~20-24 hrs with XBass on). IP67 rated with a loose handle for carrying/hanging. Pairs with a second Flow for stereo; USB-C port charges your phone too. Measured bass extension of 47Hz (-10dB).
Cons: Not stereo. Midrange and bass are weirdly recessed about 4db below 700Hz. You need xbass mode for it to not sound like a clock radio with missing bass. You also can’t turn up the bass enough in the custom EQ modes to get it neutral, so it will sound bass light. Firmware 1.2.3 fixes the distortion issues with xbass mode on, but bass still sounds wobbly and uncontrolled.
Full Tribit Stormbox Flow review and specifications →
| Released | Oct 2023 (3 years ago) |
|---|---|
| Amplifier Power | 25W |
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Latency | 400ms aac, 200ms sbc |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 7.9” x 3.6” x 2.1” (200 x 91 x 53 mm) |
| Drivers | 60W: 2x 30mm drivers + passive radiators |
| EQ | Yes |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | Pointing up |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.4 lbs (657 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Tribit Stormbox Flow - after firmware update More from Oluv’Sone →
- Oluv Patreon: Tribit Stormbox Flow - sound demo
- Alan Ross Reviews: Tribit Stormbox Flow firmware update 1.2.3 game changing moment in portable bluetooth history! More from alanrossreviews →
- Alan Ross Reviews: Tribit Stormbox Flow firmware update 1.2.5 - stuff gets fixed ✔
- Alan Ross - The Anti Shill!: DBSONO X-Blast F37 vs Tribit StormBox Flow - Cheap But Cheerful? 🙈
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but………..
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs XSound Mega - Sound Comparison, Stock EQ, Both Mono Sound 😶🌫️ A Family Feud More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex "Inspired" Speakers
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Marshall Emberton III: $129.99 Amazon $129.99 eBay
Older models: the Marshall Emberton II (ranked lower, rated 2.7/5) and the Marshall Emberton (ranked lower, estimated 2.6/5). See every Marshall Portable Speakers generation.
Same family: the Marshall Willen II (smaller model, rated 4/5), the Marshall Middleton II (larger model, rated 4.1/5), the Marshall Stockwell III (larger model, rated 3/5) and the Marshall Kilburn III (larger model, rated 3.8/5).
Pros: 30 hour battery life: among the best in its class; a 20 min quick-charge gives 4 hours. IP67 rated, durable rubbery build using 50% recycled plastic. Measured bass extension of 62Hz (-10dB).
Cons: Strange unnatural echo-like sound coloration, bass not as deep as competitors. Not technically a 360 speaker, only front and rear. Not very loud. Not really any different from the Marshall Emberton II except having the treble turned down a little bit.
Full Marshall Emberton III review and specifications →
| Released | Aug 2024 (2 years ago) |
|---|---|
| Amplifier Power | 20W |
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 62Hz |
| Battery Life | 32 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Drivers | 2x 2” full-range cone drivers + 2x 2” passive radiators |
| EQ | Yes (3 presets via app) |
| IP Rating | IP67 |
| Omnidirectional | Yes |
| Party Mode | Yes (Marshall Stack) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| Weight | 1.5 lbs (673 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Marshall Emberton III vs Bose SoundLink Color II
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